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cfluegel/gist:0ab8f23c4988092fca7c97ad70cb4e6a

Created December 5, 2021 20:02
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LLDP with Scapy
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gistfile1.txt
Generate a LLDP packet with scapy. Now that I understand the basic structure and was able to play a bit with it, I need to
find a way to put this into C/C++ code so that I can automatically identify windows computer.
Not sure yet if this is possible with winsock...
test=Ether(dst="01:80:c2:00:00:0e", src=get_if_hwaddr(conf.iface), type=0x88cc) / LLDPDUChassisID(subtype=0x4,id=get_if_hwaddr(conf.iface)) / LLDPDUPortID(subtype=0x5, id=str(conf.iface)) / LLDPDUTimeToLive(ttl=600) / LLDPDUEndOfLLDPDU()
<Ether dst=01:80:c2:00:00:0e src=50:ed:3c:1e:bc:89 type=LLDP |<LLDPDUChassisID subtype=MAC address id=50:ed:3c:1e:bc:89 |<LLDPDUPortID subtype=interface name id='en0' |<LLDPDUTimeToLive ttl=600 |<LLDPDUEndOfLLDPDU |>>>>>
>>> sendp(test)
Wireshark showed the packet. I did not see an error of any kind, so the packet seemed to be okay. I need to verify this with
an managed switch.
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